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  1. #27
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    Look...………………...

    Were all here to learn. Please explain or post documents on why you wont follow the manufactures recommendations.

    Maybe you know something we don't.

    Do you flow N2 while brazing?

  2. #28
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    OK

    I'll go first


    From this Document on Micro Channel Condensers:
    https://www.cantas.com/urunpdf/sanhu...hannel_cat.pdf

    Page 12 R-410A Refrigerant

    Operating Pressure 4.5 mPa or 652 PSIG

    Burst Pressure 13.5 mPa or 1,958 PSIG

  3. #29
    Join Date
    Sep 2007
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    State College, PA
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    Thread Starter
    I use the standard of whatever the manufacturer states in their literature. Or at least I try to.

    But everyone has their own experience. As long as it works for you and doesn't cause problems, you should keep doing it.

    Just my opinion.
    Can someone please explain to me -
    Why is there never enough time to do it right the first time, but plenty of time to do it twice?


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  4. #30
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    Quote Originally Posted by joemach View Post
    I use the standard of whatever the manufacturer states in their literature. Or at least I try to.

    But everyone has their own experience. As long as it works for you and doesn't cause problems, you should keep doing it.

    Just my opinion.
    The only problem I have with that is Others that don't know read this and think its OK.

    Not flowing N2
    Additives
    Topping off charges with different refrigerants.

    The list of Misinformation and or Bad information continues to grow instead of diminishing!

  5. #31
    Join Date
    Jan 2010
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    Quote Originally Posted by joemach View Post

    But everyone has their own experience. As long as it works for you and doesn't cause problems, you should keep doing it.

    Just my opinion.
    But it might not be working for him by not using the higher pressure when acceptable.

  6. #32
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    May 2018
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    FLORIDA
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    Quote Originally Posted by joemach View Post
    I use the standard of whatever the manufacturer states in their literature. Or at least I try to.

    But everyone has their own experience. As long as it works for you and doesn't cause problems, you should keep doing it.

    Just my opinion.
    i agree. LOL
    Finally someone taking my side LOL
    yes i flow nitrogen when I'm brazing and yes i do 3 vacuum
    and again i don't install VRF with hundred of brazing, YOU have to do 2 brazing on condenser and 2 on a/h.
    if you are confident with your brazing you don't need 600 psi
    Thats it.
    Visit our website at www.airconcomfortcooling.com

  7. #33
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    Aug 2002
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    3 Vacuums?

  8. #34
    Join Date
    Sep 2007
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    State College, PA
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    Thread Starter
    I usually do 75-100 lbs, then soap my braze joints. The reason being that at 200+ lbs a small leak will just blow the bubbles away and I will not see them. Once I am satisfied with no leaks, I then pump up to manufacturer's recommended pressure.

    I figure there was a reason someone included the install manual with the equipment.
    Can someone please explain to me -
    Why is there never enough time to do it right the first time, but plenty of time to do it twice?


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  9. #35
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    May 2018
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    Quote Originally Posted by pecmsg View Post
    3 Vacuums?
    triple vacuum
    Visit our website at www.airconcomfortcooling.com

  10. #36
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    Quote Originally Posted by AIRCON8 View Post
    triple vacuum
    How many microns?

  11. #37
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    Dec 2019
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    Lake of the Ozarks Mo
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    I don’t always pressure up to 400 psi.

  12. #38
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    Dec 2019
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    Lake of the Ozarks Mo
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    Usually 200 is sufficient

  13. #39
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    Jul 2019
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    Oklahoma home its in the name
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    The Leak Detection manual from refrigeration Technologies is a must read at least once.

    Sent from mars using Tapatalk

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